The STS-134 mission.
The Audio Files are named to describe their respective content.
The zip files, under 'Whole Item', contain all the raw Air-to-Ground transmissions from each calendar day (in Central Time).
Digitized, archived and cataloged by the Houston Audio Control Room.
June 10, 2013
Missing mission audio files for 5/16/11
Thank you very much for posting the NASA audio files.
The launch day mission audio download 05-16-11_STS-134_Mission-Audio.zip only contains files from 1:42am to 3:58am on May 16, 2011. The remaining files are from June 16, 2011 and seem to be communication with the International Space Station. Hopefully the remaining audio from STS-134 Flight Day 1 can be made available.